CN110194416A - An a kind of portal frame anti-tenesmus card armful structure - Google Patents

Abstract

The present invention provides an anti-fall clamping structure for a gantry frame, which includes a guide column, a sealing box, a clamp wheel, a driving gear, a transmission gear, a clamp plate, fastening bolts, a telescopic rod, an extension plate, a connecting groove, a main Bearing rod, positioning protrusion, limit column, connecting piece, passive connection interface, fan wing, active connection interface, limit groove, spring; the outer nest of the guide column is provided with a sealing box, and the inside of the sealing box is connected by bearing rotation A clamping wheel is provided, and a connecting groove is integrally arranged on the outside of the clamping wheel. By setting the gear ratio between the driving gear and the transmission gear as 1:2, this setting can make the clamping wheel rotate with the device descending and contact with the guide column, and when the descending speed of the device is accelerated, the clamping wheel The rotation speed of the component wheel is also accelerated, which in turn causes other components to move, making the device more synchronized during use, without other delays, and more sensitive to the sense of falling.

Description

An anti-drop clamping structure for a gantry frame

technical field

The invention relates to the technical field of construction, in particular to an anti-fall locking structure for a gantry frame.

Background technique

The gantry is a new type of small lifting gantry developed according to the daily production needs of medium and small factories (companies) for handling equipment, warehouse import and export, lifting and maintenance of heavy equipment and material transportation. It is suitable for manufacturing molds and auto repair factories. , mines, civil construction sites and occasions where lifting is required, it is commonly used as material transportation and construction personnel's upper and lower use in building construction to realize lifting mechanization, which can reduce manpower, reduce production and operation costs, and improve work efficiency.

Generally, when the gantry is moved up and down by driving the frame plate on the vertical guide column by the hoist, compared with the elevator, the general gantry lacks such a device as a safety rope, so that the gantry will appear certain when it is in use. In order to prevent the wire rope from breaking and causing the shelf to fall, a locking structure is needed to avoid accidents.

Based on the above description, and in combination with the equipment in the prior art, it is found that the existing lock has a certain delay when it is used. At the same time, it is not sensitive enough to capture the feeling of falling. Moreover, the quality of the clamping structure It is also not high enough, so this design aims at the above problems, and designs a reasonable structure and good functional gantry with an anti-fall clamping structure to improve practicability.

Contents of the invention

The object of the present invention is to provide an anti-fall locking structure for a gantry, so as to solve the problem that the existing lock has a certain delay when it is used. At the same time, it is not sensitive enough to capture the feeling of falling, and the locking The quality of the structure cards is not high enough.

The purpose and effect of the gantry frame of the present invention with the anti-fall clamping structure are achieved by the following specific technical means:

An anti-fall clamping structure for a gantry frame, which includes a guide column, a sealing box, a clamp wheel, a driving gear, a speed change gear, a clamp plate, fastening bolts, a telescopic rod, an extension plate, connection groove, main bearing rotating rod, positioning protrusion, limit column, connector, passive connection interface, fan wing, active connection interface, limit groove, spring; the outer nesting of the guide column is provided with a sealing box , the inside of the sealing box is connected with a clamping wheel through bearing rotation, the outside of the clamping wheel is integrally provided with a connecting groove, and an extension plate is integrally provided under one side of the sealing box, and the inside of the extension plate is rotated by a bearing A main bearing rotating rod is connected, and one side of the main bearing rotating rod is integrally provided with a speed change gear, and the inner wall of the main bearing rotating rod is integrally provided with a positioning protrusion, and the inside of the main bearing rotating rod is movably connected with a telescopic rod;

The outer part of the telescopic rod is welded with fan wings, one end of the telescopic rod is integrally provided with an active connection interface, the interior of the telescopic rod is integrally provided with a limit slot, and the inner end of the main rotating rod is connected to the active connection interface. The inner walls of the interface are fixedly connected with springs, and the front and rear sides of the lower middle part of the sealing box are welded with limiting posts, and the other side of the limiting posts is connected to a clamping plate through a rotating shaft, and the surface of the clamping plate is integrated Connecting pieces are provided, fastening bolts are movably connected between the connecting pieces through threads, and the other end surface of the fastening bolts is integrally provided with a passive connection surface.

Further, there are two clamp plates, which are symmetrically arranged in the shape of a hollow 1/2 truncated cone, and the two limiting posts are connected to the bottom end of the clamp plate through bearings, and the two When the clip boards are closed, the middle part is hollow cylindrical, and its diameter is slightly smaller than the diameter of the guide column, and the inner wall of the clip board is provided with anti-skid patterns.

Further, the passive connection interface extends out of the limiting column on one side, and the passive connection interface is in the shape of an inner groove with an opening set counterclockwise, and the active connection interface is in the shape of an inner groove with an opening set in a clockwise direction, And the active connection interface and the passive connection interface are on the same straight line.

Further, the clamping wheel is in the shape of a concave column, and there are two rows, which are arranged symmetrically. The outer surface of the clamping wheel at the bottom of each row of the clamping wheel is integrally provided with a driving gear, and the driving gear and the speed change The gears mesh with each other, and the gear ratio between the driving gear and the transmission gear is 1:2.

Further, the connecting piece is provided with threads inside, which fit with the fastening bolts.

Further, the concave surfaces on the surfaces of the two rows of clamping wheels just form a circle, and fit together with the guide column.

Further, the active connection surface fits with the passive connection surface, and the positioning protrusion fits slidingly with the limiting groove.

Further, one side of the fan wing is straight, and the other side is curved, and the lift force of the fan wing rotation is greater than the tension of the spring.

Compared with the existing structure, the present invention has the following beneficial effects:

1. By setting the gear ratio between the driving gear and the transmission gear as 1:2, this setting can make the clamping wheel rotate with the device descending and contact with the guide column, and when the device descends faster , the rotation speed of the clamping wheel is also accelerated, which in turn causes other components to move, making the device more synchronous during use, without other delays, and more sensitive to the sense of falling.

2. One side of the fan wing is straight and the other side is curved, and the lift force of the fan wing rotation is greater than the tension of the spring. The passive connection interface is an inner groove with an opening that is set counterclockwise, and the active connection interface is an opening that is The inner groove is set clockwise, and the active connection interface and the passive connection interface are on the same straight line. The driving gear and the transmission gear can change the speed of rotation, so that the fan wing generates lift and pulls the telescopic rod out from the inside of the main rotating rod. , so that the active connection interface and the passive connection interface fit together, so that the device can respond more timely to reduce the delay when this situation occurs.

3. Threads are provided inside the connecting piece to match the fastening bolts. There are two clamping plates, which are symmetrically arranged in the shape of a hollow half-round table, and the two limiting columns are connected with the clamping plates. The bottom ends are connected by bearings, and when the two clamp plates are combined, the middle part is hollow cylindrical, and its diameter is slightly smaller than the diameter of the guide pipe column, and the inner wall of the clamp plate is provided with anti-skid patterns, which can be tightened by fastening the bolts. Rotation can make the two clip plates shrink inward, so that the inner wall of the clip plate is in contact with the guide column, and then achieves the purpose of clamping between the clip plate and the guide column, and the structure of the clip plate can make For the guide string, I like to eat more tightly to avoid loosening.

Description of drawings

Fig. 1 is a schematic diagram of the overall three-dimensional structure of the present invention;

Fig. 2 is a schematic diagram of the overall internal structure of the present invention;

Fig. 3 is a structural schematic diagram of the clamp plate of the present invention;

Fig. 4 is a structural schematic diagram of the telescopic rod of the present invention;

Fig. 5 is a schematic diagram of the internal structure of the main bearing rotating rod of the present invention;

Fig. 6 is a schematic diagram of the fan wing structure of the present invention;

Fig. 7 is a schematic diagram of the structure of the clamping wheel of the present invention.

In the figure, the corresponding relationship between component names and drawing numbers is:

1-Guide column, 2-Seal box, 3-Clamp wheel, 4-Drive gear, 5-Transmission gear, 6-Clamp plate, 7-Clamping bolt, 8-Telescopic rod, 201-Extension plate, 301 -connection groove, 501-main bearing rotating rod, 5011-positioning protrusion, 601-limiting column, 602-connecting piece, 701-passive connection interface, 801-fan wing, 802-active connection interface, 803-limiting slot , 804-Spring.

Detailed ways

In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" , "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral Ground connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

Example:

As shown in accompanying drawing 1 to accompanying drawing 7:

The invention provides an anti-fall clamping structure for a gantry frame, which includes a guide column 1, a sealing box 2, a clamping wheel 3, a driving gear 4, a transmission gear 5, and a clamping plate 6 , fastening bolt 7, telescopic rod 8, extension plate 201, connecting groove 301, main bearing rotating rod 501, positioning protrusion 5011, limit post 601, connecting piece 602, passive connecting surface 701, fan wing 801, active connecting surface 802, limit groove 803, spring 804; the guide column 1 is nested with a sealing box 2, the inside of the sealing box 2 is connected to the clamping wheel 3 through bearing rotation, and the external of the clamping wheel 3 is integrally provided with a connecting groove 301, An extension plate 201 is integrally arranged under one side of the sealing box 2, and a main bearing rotating rod 501 is connected to the inside of the extending plate 201 through bearing rotation. The positioning protrusion 5011 is integrated, and the main bearing rotating rod 501 is movably connected with the telescopic rod 8;

The outer part of the telescopic rod 8 is welded with a fan wing 801, one end of the telescopic rod 8 is integrally provided with an active connection interface 802, and the interior of the telescopic rod 8 is integrated with a limit slot 803, and the inner end of the main bearing rotating rod 501 is connected to the active connection interface. A spring 804 is fixedly connected between the inner walls of 802, and the front and rear sides of the lower middle part of the sealed box 2 are welded with limiting columns 601, and the other side of the limiting column 601 is connected to the clamping plate 6 through the rotation of the rotating shaft, and the surface of the clamping plate 6 is integrated. Connecting pieces 602 are provided, fastening bolts 7 are movably connected between the connecting pieces 602 through threads, and the other end surface of the fastening bolts 7 is integrally provided with a passive connection surface 701 .

As shown in accompanying drawings 1, 2, and 3: wherein, there are two clamping plates 6, which are symmetrically arranged in the shape of a half-round truncated hollow, and between the two limit posts 601 and the bottom end of the clamping plate 6 Connected by bearings, and when the two clip plates 6 are combined, the middle part is hollow cylindrical, and its diameter is slightly smaller than the diameter of the guide column 1, and the inner wall of the clip plate 6 is provided with anti-skid patterns, when objects on the guide column 1 When moving at a constant speed, the clip plate 6 is in normal motion. When the object on the guide column 1 is unexpectedly accelerated, the speed of the clip wheel 3 is accelerated, and then through the speed change between the driving gear 4 and the transmission gear 5, the main The rotating rod 501 drives the telescopic rod 8 to move at an accelerated speed. Since the fan wing 801 is an arc surface, the arc surface can accelerate the movement of the airflow, thereby generating greater pressure. Pull out the inside of the rotating rod 501, so that the active connecting surface 802 and the passive connecting surface 701 fit together, and then provide a rotating force to the fastening bolt 7, so that the fastening bolt 7 and the connecting piece 602 act, and the two clamps are locked together. The plate 6 shrinks inward, so that the inner wall of the plate 6 contacts the guide column 1, thereby achieving the purpose of clamping between the plate 6 and the guide column 1, and then achieving the purpose of clamping and limiting.

As shown in accompanying drawings 1, 2, 3, 4, and 5: wherein, the passive connection interface 701 has been extended to one side of the limit column 601, and the passive connection interface 701 is an inner groove with an opening set counterclockwise, and the active connection interface The interface 802 is an inner groove with an opening arranged clockwise, and the active connecting interface 802 and the passive connecting interface 701 are on the same straight line. The connecting surface 802 fits with the passive connecting surface 701, and then provides a rotating force to the fastening bolt 7, so that the fastening bolt 7 and the connecting piece 602 act on each other, shrinking the two clip plates 6 inwardly, so that the fastening bolt 7 The inner wall of the plate 6 is in contact with the guide column 1 to prevent objects on the guide column 1 from further falling.

As shown in accompanying drawings 1 and 2: among them, clamping wheel 3 is in concave column shape, is provided with two rows altogether, and is arranged symmetrically, and the outer surface of clamping wheel 3 bottom of each row of clamping wheel 3 is integrally provided with active Gear 4, and the meshing between the driving gear 4 and the transmission gear 5, and the gear ratio between the driving gear 4 and the transmission gear 5 is 1:2. 1 to rotate, and when the descending speed of the device is accelerated, the speed of clamping wheel 3 is also accelerated, and then the driving gear 4 and the speed change gear 5 are shifted, so that the fan wing 801 generates lift, and the telescopic rod 8 is moved from the main The rotating rod 501 is pulled out inside, so that the active connecting surface 802 and the passive connecting surface 701 fit together.

As shown in accompanying drawings 1, 2, and 3: wherein, the inside of the connector 602 is provided with threads, which fit with the fastening bolt 7, and through the rotation of the fastening bolt 7, the two clip plates 6 can be shrunk inward, so that the clip The inner wall of the clamping plate 6 is in contact with the guide column 1, so as to achieve the purpose of clamping between the clamping plate 6 and the guide column 1.

As shown in accompanying drawings 1, 2, 3, and 7: among them, the concave surface on the surface of the two rows of clamping wheels 3 just forms a circle, and fits between the guide column 1, this setting can make the clamping wheels 3 follow the The device descends and then contacts with the guide string 1 to rotate.

As shown in Figures 3, 4, and 5: among them, the active connecting surface 802 fits with the passive connecting surface 701, and the positioning protrusion 5011 slides and fits with the limit groove 803. Since the passive connecting surface 701 is open, it is counterclockwise. The inner groove shape is set, and the active connection interface 802 is an inner groove shape with an opening arranged clockwise. This setting can make the rotating active connection interface 802 better directly engage with the passive connection interface 701, thereby achieving tightness. The fixed bolt 7 provides power, and the fit between the positioning protrusion 5011 and the limit groove 803 gives the telescopic rod 8 a synchronous rotation effect, but it will not affect the expansion and contraction of the telescopic rod 8 inside the main rotating rod 501 .

As shown in Figure 6: wherein, one side of the fan wing 801 is straight, and the other side is an arc surface, and the lift force of the fan wing 801 rotation is greater than the tension of the spring 804. Using aerodynamics, since the arc surface can accelerate the movement of the airflow, As the speed of the airflow increases, the pressure decreases, and the larger external pressure is used as the thrust to make the fan wing 801 generate lift, and pull the telescopic rod 8 from the inside of the main rotating rod 501, so that the active connecting surface 802 and the passive connecting surface 701 Fit between, and then provide a rotation force to the fastening bolt 7, so that the fastening bolt 7 and the connecting piece 602 act.

The specific usage and function of this embodiment:

In the present invention, the integrity of the function of the device is firstly ensured, and then the device is inserted through the guide column 1 to connect with the external device, and the concave surface on the surface of the two rows of clamp wheels 3 just forms a circle, and Fitting with the guide column 1, this setting can make the clamping wheel 3 rotate with the device’s descent and contact with the guide column 1, and the device will not function during normal uniform motion, but When and when the descending speed of the device is accelerated, as shown in accompanying drawing 1,2,3,7, clamping piece wheel 3 rotating speeds also accelerate, then by driving gear 4 and speed change gear 5, carry out speed change, because driving gear 4 and speed change The gears 5 are meshed, and the gear ratio between the driving gear 4 and the transmission gear 5 is 1:2. The transmission gear 5 can accelerate the driving gear 4, so that the main rotating rod 501 drives the telescopic rod 8 to perform accelerated movement. One side of the wing 801 is straight and one side is an arc, and the lift force of the fan wing 801 rotation is greater than the tension of the spring 804, as shown in Figures 3, 4, 5, and 6, using aerodynamics, the arc can accelerate the airflow If the speed of the airflow increases, the pressure will decrease, and the greater external pressure will be used as the thrust to make the fan wing 801 generate lift, and the telescopic rod 8 will be pulled out from the inside of the main rotating rod 501, so that the active connection interface 802 and the passive Fit between the connecting surfaces 701, and then provide a rotating force for the fastening bolt 7, the connecting piece 602 is provided with threads inside, fit with the fastening bolt 7, and there are two clip plates 6, which are symmetrically arranged in half of the hollow It is in the shape of a circular table, and the two limit posts 601 are connected to the bottom end of the clamping plate 6 by bearings. Through the rotation of the fastening bolt 7, the two clamping plates 6 can be shrunk inward, so that the inner wall of the clamping plate 6 Contact with the guide column 1, and then achieve the purpose of clamping between the clip plate 6 and the guide column 1.

In summary, although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or modify some of the technical features. Equivalent replacement, within the spirit and principles of the present invention, any modification, equivalent replacement, improvement, etc., shall be included in the protection scope of the present invention.

Claims (8)

1. An anti-fall clamping structure for a gantry, characterized in that: the anti-fall clamping structure for a gantry comprises a guide column (1), a sealing box (2), a clamp wheel (3), a driving gear ( 4), speed change gear (5), clip plate (6), fastening bolt (7), telescopic rod (8), extension plate (201), connecting groove (301), main bearing rotating rod (501), positioning Protruding head (5011), limit post (601), connector (602), passive connection surface (701), fan wing (801), active connection surface (802), limit groove (803), spring (804) The outside of the guide column (1) is nested with a sealing box (2), and the inside of the sealing box (2) is connected with a clamp wheel (3) through a bearing rotation, and the outside of the clamp wheel (3) is integrated A connection groove (301) is provided, and an extension plate (201) is integrally arranged under one side of the sealing box (2), and the inside of the extension plate (201) is rotatably connected with a main bearing rotating rod (501), One side of the main rotating rod (501) is integrally provided with a speed change gear (5), the inner wall of the main rotating rod (501) is integrally provided with a positioning protrusion (5011), and the main rotating rod (501) ) is internally movably connected with a telescopic rod (8); The external welding of the telescopic rod (8) is provided with a fan wing (801), and one end of the telescopic rod (8) is integrated with an active connection interface (802), and the internal integration of the telescopic rod (8) is limited. A position slot (803), a spring (804) is fixedly connected between the inner end of the main bearing rotating rod (501) and the inner wall of the active connection interface (802), and the front and rear sides of the lower middle part of the sealing box (2) are welded A limit column (601) is provided, and the other side of the limit column (601) is connected to the clip plate (6) through a rotating shaft, and the surface of the clip plate (6) is integrally provided with a connector (602), Fastening bolts (7) are movably connected between the connecting pieces (602) through threads, and the other end surface of the fastening bolts (7) is integrally provided with a passive connection surface (701). 2. The anti-fall clamping structure for gantry according to claim 1, characterized in that: there are two clamp plates (6), which are symmetrically arranged in the shape of a hollow half-round frustum, and the two The limit column (601) is connected to the bottom end of the clamping plate (6) by a bearing, and when the two clamping plates (6) are combined, the middle part is in the shape of a hollow column, and its diameter is slightly smaller than that of the guide tube The diameter of the column (1) is large, and the inner wall of the clip plate (6) is provided with anti-slip patterns. 3. The anti-fall locking structure for gantry according to claim 1, characterized in that: the passive connection surface (701) extends out of the limit column (601) on one side, and the passive connection surface (701) ) is an inner groove with an opening counterclockwise, and the active connection interface (802) is an inner groove with a clockwise opening, and the active connection interface (802) and the passive connection interface (701) are on the same straight line. 4. The anti-fall clamping structure for the gantry according to claim 1, characterized in that: the clamping wheel (3) is in the shape of a concave column, and there are two rows arranged symmetrically. The outer surface of the clamp wheel (3) at the bottom of the clamp wheel (3) is integrally provided with a drive gear (4), and the drive gear (4) meshes with the speed change gear (5), and the drive gear (4) and the speed change The gear ratio between the gears (5) is 1:2. 5 . The anti-fall clamping structure for a gantry according to claim 1 , characterized in that: the connecting piece ( 602 ) is provided with a thread inside, which fits with the fastening bolt ( 7 ). 6 . 6. The anti-fall clamping structure for gantry according to claim 1, characterized in that: the concave surface on the surface of the two rows of clamp wheels (3) just forms a circle, and the gap between the two rows of clamp wheels (3) and the guide column (1) fit. 7. The anti-fall locking structure for gantry according to claim 1, characterized in that: the active connection interface (802) fits with the passive connection interface (701), and the positioning protrusion (5011) and the limit Sliding fit between grooves (803). 8. The anti-fall locking structure for a gantry according to claim 1, characterized in that: one side of the fan wing (801) is straight, and one side is curved, and the lift force of the fan wing (801) is greater than The tension of the spring (804).